Bubble gun



FIG. 1 is a front, right and top perspective view of a bubble gun, showing my design.

FIG. 2 is a rear, left and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is an enlarged top plan view thereof.

FIG. 8 is an enlarged bottom plan view thereof; and,

FIG. 9 is an exploded front, right and top perspective view of the bubble gun shown with additional broken line environment.

The broken lines depict portions of the bubble gun that form no part of the claimed design. 

CLAIM The ornamental design for a bubble gun, as shown and described. 